Xerox Phaser 8400 Service Manual page 325

2.
Align the screw holes in the left and right sides of the drum assembly to the holes
in the chassis sides.
3.
Install one silver screw at the rear position of the left-side of the chassis to hold
the left side of the drum assembly and torque the screw to 25 in.-lbs.
4. Install the remaining two silver screws into the bottom and front chassis locations
to the left side of the drum assembly.
5. Install one yellow reverse-threaded screw at the rear position of the right-side
chassis to hold the right side of the drum assembly and torque to 25 in.-lbs.
6.
Install the remaining two yellow reverse-threaded screws into the bottom
location (without a washer) and the front location (with a washer) on the right
side of the drum assembly.
7.
Spread apart the chassis handles near the left and right labyrinth seals to ensure
the bearing is properly sealed.
8.
Align the clevis on the Transfix Load Arms with the holes in the mounting ears
on the Drum. The Transfix Load Arms point in the opposite direction from the
Drum Thermistor. Ensure that the cam followers on the Transfix Load Arms are
under the Transfix Cams.
9.
Insert the clevis pins through the clevis and the mounting ears on the drum (pins
are inserted from the outside). Ensure that the o-rings are mounted on the inside
end of each clevis pin.
10. Align the Exit Module to the chassis and route the Drum Thermistor cable
through the opening in the Exit Module that the other cables pass through. Seat
the Exit Module on the two front locating pins and then on the rear locating pins.
11. Insert and torque the four screws securing the Exit Module Assembly to
15 in.-lbs.
12. Apply a small quantity of Rheolube 768 grease (P/N 00679900) to the spring
hook's groove of the Transfix Load Arms.
Note
Ensure that you lever the spring cam towards the center. Applying the
pressure in the wrong direction can damage the Transfix Load Module (see
the figure on page 8-27).
13. Insert a T-20 Torxbit through the right side slotted hole in the Transfix Load
Module, engage the hole on the back of the module, and lever the module's
spring cam toward the center of the printer while connecting the spring hooks to
the Transfix Load Arms. Repeat for the other side.
14. Pull the lower end of the Y-Axis spring arm toward the front of the printer and
install the Y-Axis belt first on the motor pulley and then on the drum pulley. (It is
not necessary to align the belt on the drum pulley.) Ensure that the grooves of the
belt align in the grooves of the motor pulley and that the cross-ribs are away from
the pulleys.
15. Reposition the Media Drive Motor, insert the 3 screws, and torque the screws to
12 in.-lbs.
16. Connect the Media Drive Motor Fan and Media Drive Motor cables. Bend the
cable retainer as required to hold the fan cable.
Service Parts Disassembly 8-37